Timer [T]; Numbers Of Timers - Mitsubishi Electric MELSEC-Q Structured Programming Manual

FXCPU Structured Programming Manual
[Device & Common]
2.5

Timer [T]

Timers add and count clock pulses of 1 ms, 10 ms, 100 ms, etc. inside the PLC. When the count value
reaches a specified set value, the output contact of the timer turns ON.
A set value can be directly specified by a constant (K) in the program memory, or indirectly specified by the
contents of a data register (D).
In timers, "TS" indicates a contact, "TC" indicates a coil, and "TN" indicates the current value.
2.5.1

Numbers of timers

The table below shows timer (T) numbers. (Numbers are assigned in decimal.)
1. FX /FX /FX
3S 3G
For 100 ms pulses
0.1 to 3276.7 sec
FX 3U /
FX ----------------------------
3UC
PLC Routine program type
For 100 ms pulses
0.1 to 3276.7 sec
T0 to T199
FX 3G / 200 points
FX -----------------------
3GC
PLC Routine program
type T192 to T199
For 100 ms pulses
0.1 to 3276.7 sec
FX PLC
3S
Timer numbers not used for timers can be used as data registers for storing numeric values.
*1. Retentive type timers are backed up by the battery in FX
*2. Retentive type timers are backed up by the EEPROM memory (built in PLC) in FX
PLCs.
*3. 100 ms timers are changed to 10 ms timers when the special auxiliary relay M8028 is driven.
*4. This function is not supported in the FX
48
→ Refer to the Q/L/F Structured Programming Manual (Fundamentals).
/FX /FX PLCs
3GC 3U 3UC
For 10 ms pulses
0.01 to 327.67 sec
T0 to T199
200 points
T200 to T245
46 points
T192 to T199
For 10 ms pulses
0.01 to 327.67 sec
T200 to T245
46 points
For 100/10 ms
pulses
0.1 to 3276.7 sec
0.01 to 327.67 sec
T32 to T62
T0 to T62
*3
63 points
31 points
Retentive type for
*1
1 ms pulses
0.001 to 32.767 sec
T246 to T249
4 points
Interrupt execution
latched (backed-up)
1
type*
Retentive type for
Retentive type for
1 ms pulses
100 ms pulses
0.001 to 32.767
0.1 to 3276.7 sec
sec
T246 to T249
T250 to T255
2
4 points*
6 points
Interrupt execution
Latched (backed-
latched (backed-
up) type
up) type
Retentive type for
For 1 ms pulses
1 ms pulses
0.001 to 32.767
0.001 to 32.767
sec
sec
T128 to T131
4 points
T63 to T127
Interrupt execution
65 points
latched (backed-
up) type
/FX
3U 3UC
-30M /E -2AD PLC.
3S
2 Devices in Detail
Retentive type for 100
For 1 ms pulses
*1
ms pulses
0.001 to 32.767 sec
0.1 to 3276.7 sec
T250 to T255
6 points
T256 to T511
Latched (backed-up)
*1
type
For 1 ms pulses
0.001 to 32.767
sec
*2
T256 to T319
64 points
Retentive type for
100 ms pulses
0.1 to 3276.7 sec
T132 to T137
6 points
Latched (backed-
*2
up) type
*2
PLCs.
3S
2.5 Timer [T]
256 points
Variable
potentiometer
type
Numeric value
from 0 to 255
2 built-in points
(Only in FX
3G
PLC)
Variable
potentiometer
type
Numeric value
from 0 to 255
*4
2 built-in points
/FX /FX
3G 3GC